Washing apparatus



Nov. 24, 1936. H, A LlNGARp 2,062,097

WASHING APPARATUS Filed April 1l, 1934 Inventor: Her beT`t A. Lngard,

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His Attorneg.

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Patented Nov. 24, 1936 UNITED STATES WASHING APPARATUS Herbert A.Lingard, Harrow Weald, England,

assignor to General Electric Company, a corporation of New YorkApplication April 11, 1934, Serial No. 720,109 In Great Britain Aprilv20, 1933 1 Claim.

This invention relates to washing apparatus, more particularly tomachines for washing dishes, and it has for its object the provision ofan improved device of this character which is efficient in its operationand which is compact so that it can be readily fitted into or above thesink of an ordinary dwelling.

The washing apparatus in accordance with this l invention comprises apump driven by a suitable motor, preferably an electric motor. The pumpis arranged to be connected to a suitable source of cleansing fluidsupply, such as a hot water tap or other suitable source of hot watersupply, and to discharge the water received therefrom at a relativelyhigh pressure through a suitable nozzle. y This nozzle preferably willbe shaped so that the water is dischargedfrom it in a relatively flatand rwide jet. Liquid soap or some other suitable detergent may be addedto the water, preferably at a point between the exit of the pump and thejetissuing from lthe nozzle. The nozzle is preferably coupled to thepump by means of a flexible conduit so that the jetcan be turned in anydirection against the surfaces of dishes and like articles tobecleansed.

In carrying this invention into effect in one form thereof, a relativelysmall electric motor is arranged to be connected to the domesticlighting or power circuit. Coupled `to the driving shaft of this motoris a pump, preferably of the gear wheel or centrifugal type. The intakeof this pump is arranged to be connected to the hot water supply tap, orother suitable source of cleansing fluid supply, while its discharge isarranged to be connected with the. nozzle through the flexible conduit.The pump functions to raise the pressure of the water from the tap to arelatively high value and supply it to the nozzle. A suitable reservoirvcontaining liquid soap communicates with the nozzle at a point betweenthe discharge of thepump and the discharge of the nozzle. The liquidsoap may be fed into the stream of water flowing through the 'roo nozzleat a predetermined rate from the reservoir, or it may be drawn into thestream of water by the ejector action of fluid flowing through thenozzle.

' The nozzle may and preferably will be provided with a hand-operatedvalve to cut off the supply of water when desired. To prevent thebuilding up of pressure and damage to the pump when the valve is closed,the pump is provided with an over-load valve' which opens at apredetermined pressure to allow the Water to circulate freely around thepump.

The apparatus comprising the pump and motor is mounted upon a panel orbracket which in turn may be mounted upon the wall of the kitchen at aconvenient point above the sink. Preferably, the pump and motor unitwill be enclosed in a cylindrical or substantially cylindrical sheetmetal casing, provided with suitable openings for ventilation, and withmeans whereby the casing may be suspended from the wall above the sink.

For a more complete understanding of this invention, reference should behad to the accompany'ing drawing in which Fig. l is an elevation insection of dishwashing apparatus embodying this invention, portionsbeing broken away to illustrate certain details of construction; Fig. 2is a sectional view taken through the line 3-3 of Fig. l and looking inthe direction of the arrows; Fig. 3 is an elevation in section of anozzle arranged to be used in the washing apparatus shown in Figs. l and2; Fig.'`

4 is an end elevation of a portion of the nozzle of Fig. 3; and Fig. 5is a sectional view taken through the line 545 of Fig. 3 and looking inthe direction of the arrows.

Referring to the drawing, this invention has been shown as applied towashing apparatus comprising an electric motor I0 having a shaft II thatis rotatable in bearings I2. .The shaft II is mechanically connected tothe shaft I3 of a pump I4 byv means of a flexible coupling I5.

The pump I4 comprises a casing IB which has in it a fluid intakepassageway I'I anda discharge or outlet passageway I8. A supply con'-duit 2D communicates with the supply passage-.p way Il and a dischargeconduit 2I communicates with the discharge passageway I 8. The casingalso has a suitable opening 22 for rotor members 23 and 24 meshing witheach other, as clear# ly shown in Fig. 2. These members 23 and 24 aremounted upon spindles 25 :and 26, respectively, which in turn aremounted in bearings 21. The spindle 25 is connected with the pump shaftI3 so as tobe driven directly by the motor.

'I'he pump is closed by end plates 30 and 3|, and a stufling box 32 forthe main shaft I3 is provided in the end plate 30. The pump is securedrelative to the motor by means of a supporting member 33 having asubstantially semicircular cross-section and projecting from the motorframe, as shown in Fig. 1. The member 33 is provided in its bottom witha drain outlet 34 that communicates with a drain pipe 35 which serves todrain away any Water which might pass from the stuffing box 32.

The pump and motor are encased Vby a suitable casing 36 which, as shownin Fig. 2, has a substantially cylindrical shape.

The end Walls 31 of this casing slip over the ends of the casing, asshown in Fig. l, and are secured to the motor and pump respectively bymeans of bolts 38 and 39. These end walls, as shown,` are provided with'openings 40 providing for ventilation of the casing.

A liquid soap container or reservoir 4I is secured to the end Wall 31 atthe right-hand end.

of the casing, as viewed in Fig. 1. If desired, this reservoir may beincluded in the casing, together with the motor II) and the pump I4. Thebottom of the reservoir is provided with a discharge conduit 42.

The discharge 2I of the pump I4 and the discharge conduit 42 of thereservoir communicate with a suitable nozzle member 43 through flexibleconduit members 44 and 45, respectively. The conduits or pipes 44 and 45are tted to the ends of steel tubes 46 and 41 respectively in the nozzleand are secured to these pipes by means oi a clip 48. The pipes 46 and41 pass through a handle member 50 which may be made of any suitablematerial, but.V preferably will be made of a molded resinous material,and. which preferably will have a substantially oval shape, as

shown in Fig. 5. A toe 5I is provided at theV supply end, as shown. Thehandle 50 is held in position by the flexible tubes 44 and 45 at thesupply end and by the body 52 on the nozzle at the delivery end. Thetubes 46 and 41, as shown, are screwed into this body member 52, whichpreferably will be made ofbronze.

The hot water from the tube 46 is controlled by means ,of a suitablevalve 53 which rests upon a valve seat 54. 'I'he discharge side of thisvalve communicates with a nozzle member 55 in'whi'ch are provided threefiat -relatively wide nozzle holes or discharge openings 56. This nozzlemember also preferably will be formed of bronze. In view of the factthat the nozzle openings 56V are relatively Wide and narrow, the fluidflowing from them will issue in a relatively thin and wide sheet or jet.

AThe supply of soap from the conduit 41 to the nozzle member 55iscontrolled by a valve plunger 51 which leaves a. clear passage throughthe flat portions 58 of the valve rod 60 when the rod is depressed fromthe position shown in Fig. 3 sufilclently to clear the shoulder 6I.

l The valve 53 is biased to its closed position by means of a suitablecompression spring 62 and is opened by depressing the valve rod 6I). Asshown, the rod is provided on its upper end with a knob 63 which may bedepressed by a suitable manually operable lever member 64 which in turnis provided with a suitable` operating knob 65.

When the valve rod 60 is depressed by the handle 64 against the spring62, the valve 53 will be opened at once from seat 54 to permit water toflow to the nozzle member 55. 'I'he plunger 51, however, does not clearthe shoulder 6I until the rod has been moved a relatively shortadditional amount, such for example as 11g. vThus, the initial movementof the rod 60 supplies a jet of water only, and further movement of therod Vis necessary before the .soap solution is admitted to the jet.

The control knob 65, which is arranged for convenient operation by thethumb of the hand of the attendant who grips the handle 56, depressesthe lever 64 to actuate the valve rod 60. The knob 65, as shown, isarranged to slide for a short distance to the left on the handle 64, asv

viewed in Fig. 3. In doing this, the knob slides a shoulder 66 arrangedon a block 61 attached to the knob to a position where, when depressed,itwill rest upon a shoulder 68 on the body of the valve. In this way,depression of the lever 64 on the rod 60 is arrested so that hot wateralone may be delivered, the soap valve 51 in this position of the leverbeing in its closed position. By sliding the knob to the position shownin Fig. 3, the shoulders 66 and 66 clear each other so that the levermay be depressed to admit soap to the nozzle member.

'Ihe pump is provided with by-pass passageways 10 connecting thedischarge passageway I6 of the pump with the inlet passageway I1. Withinthe by-pass passageways is a relief valve 1I which is biased to its seatby means of a spring 12, and which opens when `the pressure in thedischarge passageway I8 becomes excessive due to closure of the watervalve 53 in the nozzle. It will be observed, therefore, that when thisvalve is moved to its closed position, the water flow through the nozzlewill be shut oil.' and the discharge into the passageway I8 from thepump will be circulated about the pump into the inlet passageway IL Thecasing 36 is provided with suitable supporting brackets 13 whereby thecasing can be supported from a wall or panel arranged in a suitablelocation, preferably above the kitchen sink.

In the operation of thedevice, it'will be understood that the inletpassageway I1 of the pump will be connected witha suitable source oi.'water supply, such as a hot water tap, by means of the conduit 20. Themotor I0 will be plugged into a suitable source of electrlcalsupply andthen the water will be turned on tothe pump from the tap. When the waterhas been turned on it will be delivered to the nozzle 43 at a relativelyhigh pressure. In order to wash the dishes, the control knob 65 isdepressed to open the water valve 53 so as to allow the water to issuefrom'the nozzle in a relatively wide flat jet. If it is desired to mixsoap with the stream of water issuing from the nozzle, the handle 65will be depressed to such an extent as to open `the controlling member51 for the soap, whereby soap can flow from the conduit 41 through thenozzle. The soap is dawn out into the stream owing from thel nozzle bymeans Vof the ejector action of the stream, which causes' a reducedpressure-in the soap passageway inthe nozzle. found that the stream ofhot soapy water issuing in a fiat jet under pressure from the nozzleisquite eiIective in removing the most adhesive substances from plates,dishes and the like.

While I have shown a particular embodiment of my invention, it will beunderstood, of course. that I do not Wish to be limited thereto sincemany modications may be made, and I, therefore, contemplate by theappended claim to cover any such modifications as fall within the truespirit and scope of Vmy invention.

What I claim as new and desire to secure by Letters Pat-ent of theUnited States, is:

Dishwashing apparatus adapted to be supported in an elevated positionabove a sink and the like comprising a pump, a supply conduitcommunicating with the intake of said pump and adapted to be connectedto a water supply source, a second conduit communicating with the dis-.charge of said pump, a flexible conduit connected motor in an elevatedposition on the lwall of al room or the like, a soap container,meansattaching saidsoap container to said pump and motor structure and aflexible conduit connectin g said soap container with said nozzle.

' h HERBERT A.'LINGARD. Y

It has been 45.r

